Roller surfacing or polishing machine



I L. BAGI.

ROLLER SURFACING 0R POLISHING MACHINE. APPLICATION FILED JULY 26. I92!-1,429,3l' 7, PatentedSept. 19, 1922.

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- L. BAGI.

ROLLER SURFACING 0R POLISHING MACHINE.

APPLICATION FILED JULYZB. I921.

PatentedSept. 19,1922.

fink/V5 5 Patente'd Sept. 19, 1922.

UNITED STATES PATENT oFFlcE.

LOUIS BAGI, OF GRANITE CITY, ILLINOIS, ASSIGNOR OF ONE-HALF TO JOHNMAKAY,

' OF GRANITE CITY, ILLINOIS.

ROLLER SURFACING OR POLISHING MACHINE.

Application filed July 28, 1921. Serial No. 488,224.

To all whom it may concern Be it known that I, LOUIS BAGI, a citizen ofHungary, Europe,'residing at Granite City, county of Madison, State ofIllinois, 6 have-invented a certain new and useful Improvement in RollerSurfacin or Polish- I ing Machines, of which the fol owing is aspecification, reference being had to the accompanying drawings, forminga part 10 thereof.

This invention relates generally to surfacing or polishing machines and,more Particularly, to a certain new and useful improvement in that typeof polishing machines which are especially adapted for polishing therolls of a rolling mill or the like. In rolling mills, it is generallessential in order that the rolls may efliclently perform theirfunction, that the surfaces of e the rolls be clean, smooth, andpolished,

and it is the principal object of my present invention to rovide amachine which will efficiently malntain the rolls in proper polishedworking condition without interfering with or causing delays in theproper productive operation of the rolls.

Further objects of my invention are to provide a machine of the typestated which is adapted to directly receive and be actuated by powerfrictionally imparted by the rolls of the mill; to provide a machine ofthe type stated which is self-cleaning, conveniently 'shiftable into andout of driven engagement with the rolls of the 'mill, automatic in itsoperations, readily adjustable to rolls of varying diameter, and ofsimple, compact, and practical construction for the effectiveperformance of its intended funcment, and combination of partshereinafter.

described and afterwards pointed out in the claims.

In the accompanying drawings,

Figure 1 is. a longitudinal fragmentary sectional elevation of a rollingmill equipped with a roll-polishing machine or attachment tions; and togenerally improve upon and cate the frame-ends or standards of arolling-mill, in and between which are mounted for rotation the rolls 3and 4, one of which rolls, as is common, is suitably driven (by meansnot shown), and between which rolls the sheet metal or other materialbeing worked is drawn, a suitable table 5 facilitating the movement orfeeding of the sheets to and from the rolls.

The accuracy of the work and efliciency of the rolls 3 and 4 dependlargely upon their surface condition, and tov maintain the surface ofthe rolls in eflicient working condition, I have provided my newpolishing attachment, which will now be described.

6-6 designate plates which are secured to the inside faces of thestandards 1 and 2. Formed in the plates 6, arelongitudinally disposedundercut grooves providing supporting-ways for runners 7 '7, fixed towhich are cheeks '8, and which runners 7 with the cheeks 88 constitutewhat may be described as the main frame of the polishing machine orattachment.

Supported lengthwise by and between the cheeks 8, is a so-called mainshaft 9,

and non-rotatably seated at its ends in,

and also disposed lengthwise between the cheeks 8, is a second shaft 10provided upon -its surface and substantially throughout its length withseries of "oppositely cut threads, as best seen in Figure 3.

Suitably pivoted at their lower end to the mill=standards 1 and 2, asseen in Figures 1 and 3, are frame-shifting levers 1111. Having one endsuitably attached to the runners 7 and their opposite end toappearingfare coiled springs 12, the clips "clips or brackets 13,for'purposes shortly brackets 13, in turn, being fastened pivotally tothe levers 11 and having slot-andpin connection with the runners 7, asbest seen in Figure 2. Fixed to the mill standards 1 and 2 adj acent thelevers 11, are racks 1414, adapted for co-action with which toreleasably hold the levers 11, and hence also the attachment main-frameand its carried parts, in adjustably ,set positions, are pawls 15, andhaving engagement with the levers 11 and pawls 15 for yieldingly holdingthe pawls 15 in engagement with the racks 14,

are coiled springs 18.

For evenly shifting the attachment mainframe, the levers 11 areconnected together by a rotary cross-rod 19; and fixed at an end to' therod 19 are levers 13 pivotally connected at their other end to one endof links 17 having pivoted connection, in turn, at their other end tothe pawls 15, whereby, on rotary movement of the cross-bar 19, bothpawls 15 will be'operatively actuated in unison.

and suitably mounted within the bore of the Y sleeve or barrel 20, asbest seen in' Figure 2, is anarcuated shoe 21 arranged to travel on therotation of barrel 20 in the threads of the shaft 10 to cause thesecond. frame as a -whole and its carried parts to move or travel inboth directions or reciprocatorily between the checks 8 and transverselyof the millrolls 3 and 4.

At their forward or upper end, theplates I 22 are formed with ayoke'extension, as at 43, and journaled for rotation in the yoke 43.is apreferably corrugated or roughened roller 23 which, in the operation ofthe attachment, is adapted for frictional driven engagement with themill-roll 3.

Disposed lengthwise in the yoke 43 rearwardly of roller 23, is a shaft29, pivoted for swinging movement upon which are substantiallybell-crank levers 34. Journaled for rotation between the lower ends ofthe bell-cranks 34,.is .a second roller 24, which is constructed of somesuitable polishing material, such as, forHinstanc-e, low gradecarborundum,'and which is adapted, in the operation of the attachment,-for polishing engagement with the lower mill-roll 3.

The polishing roller 24 is preferably driven in a direction opposed tothe direction of rotation of the mill-roll 3 and to such end has drivenconnected with the friction roll 23 through a train of gearingcomprising a relatively small gear 28 fixed upon the shaft of roller 24,a large gear 26 fixed upon an end of shaft 29, a second relatively smallgear 27 mounted for rotation on a stubshaft 27 supported by bell-cranks34, the gear 27 meshing with gears 28 and 26, and a third relativelysmall gear 25 fixed upon the shaft of roller 23 and meshing with gear26. I

might add here that a relatively small gear 30 feathered for adjustmentupon the shaft 29 is adapted for meshing driving-engagement with a'larger gear 31 on the sleeve or barrel 20. Thus, it will be seen, onrotation of the roller 23 through frictional engagement with themill-roll 3 and the gear 30-being in meshing engagement with-gear 31,the

roller 24 will be rotatably driven at a somewhat higher speed and in anopposite direction over the roll 3 and, at the same time, the secondframe as a whole will be caused to travel reciprocatorily along theshafts 9 and 10 and consequently transversely or back and forth alongthe mill-roll 3.

Mounted for swinging or rocking movement on the frame plates 22, is alever 32 yieldingly connected by means of a coilspring 33 with theconnected bell-cranks 34 which carry the polishing roller 24, a pawl 35carried by the lever 32 being adapted for engagement with a toothedsector 36 arranged on the frame-plates 22 to releasably hold the lever32 in adjustably swung position.

Normally the attachment main-frame and its carried parts are inretracted position,

with the rollers 23 and 24 out of operative engagement withthe mill-roll3. It will be evident, however, that upon'a forward move rollers 23 and24 carried into driven and polishing engagement, respectively, with the,mill-roll 3, the pawls 15 in their'engagement with the racks 14functioning to lock the levers 11 in any such adjusted or shiftedposition to which they may be selectively thrown to meet therequirements of the particular mill. Due, however, to the springs 12 andthe slot-and-pin connection between the clips 13 and the runners 7 itwill be seen that the attachment-main-frame as a whole, and its carriedroller 23, may yield or give, .even with the levers 11 locked asdescribed,

should the roller 23, for instance, meet an obstruction. In itsengagement with the roll 3 and through the gearing described, the roller23 .drives the polishing roller 24 to act onthe roll 3 and also, thegear 30 being in meshing engagement with the gear 31, drives the barrelor sleeve 20 to carry the shoe 21 around the oppositely threaded shaft10 to cause the rotating polishing roller 24 at the same time to travelreciprocatorily lengthwise of and along the roll The yielding engagementbetween the polishing-roller 24 and the roll 3, due both to the springs12 and the spring 33, is such as not to grind the mill-roll, but tomerely maintain the surface of the mill-rolls in polished, .cleancondition for the efficient performance of their functions, theengagement between the roll 24 and the mill-roll 3 when the attach-'ment main-frame has been shifted forwardly, as well as the selectiveadjustment of the position of the roll 24 to engage worn rolls ormill-rolls of varying diameter, being conveniently controlled andregulated by a swinging and locking of lever 32 and a consequentincreaseor decrease in the pull of spring 33.

By reference to Figure 2, it will be noted that the ear- 30 is held fromaxial movement on t e shaft 29-by any suitable means, as, for instance,a set-screw 44 and, screw 44 being loosened, may be adjustably movedalong the'shaft 29 and out of meshing or driving engagement with thegear 31, should it be desired to temporarily concentrate the cleaningaction of the roller 24 upon any one circumferential portion of themill-r0113.

To maintain the polishing-roller 24 in eflicient roll-polishingcondition, free from grease or other particles, a roll scrapingmember 39and a roll-brush 40 are held in engagement with the surface of theroller 24 bya bar 38 slidably supported upon rods 42 depending from therocking-members or bell-cranks 34 and yieldingly held to functionateposition by springs 41. i

I am aware that changes in the form, construction, arrangement, andcombination of the several parts of my new roll-polishingattachment maybe made and substituted for those herein shown and described withoutdeparting from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is,

1. A roll-polishing-machine comprising a frame slidably shiftablerelatively to the roll to be operated upon, a roller carried forrotation by the frame and adapted for frictional engagement with saidroll, and means for slidably shifting the frame to carry the roller intodriven frictional engagement with said roll.

2. A roll-polishin -mach1ne comprising a frame slidably shi tablerelatlvely to the roll to be operated upon, a roller carried forrotation by the frame and adapted for frictional engagement with saidroll, and means for slidably shifting the frame to carry said rollerinto yielding driven frictional engagement with said roll.

3. 'A roll-polishing machine comprising a frame shiftably movablerelatively to the roll to be operated upon, a friction-roller carried bythe frame, and means fQI shifting the, frame to carry its roller intoyielding frictional. engagement with said roll, said means including apivoted lever, a clip ha-v- I ing engagement withthe lever and slotandp1n connection with the frame, and an expansion spring havingconnection with ,the clip and the frame;

4. A roll-polishing machine comprising a frame shiftably movablerelatively to' the roll to be operated upon, a friction-roller carriedby the frame, means for shifting the frame to carry its roller intoyielding frictional engagement with saidroll, said meansincluding apivoted lever, a clip having engagement with the lever and slot-and-pinconnection with the frame, and an expanslon spring having connectionwith the clip and the frame, and means for releasably locking the leverin shifted positions.

5. A roll-polishing machine comprising a frame shiftably movablerelatively to the roll to be operated upon, a friction-roller carried bythe frame, means for shifting the frame to carry its roller intoyieldingfrictional engagement with said roll, said means including a pivotedlever, a clip liavin engagement with the lever and slot-an pinconnection with the frame, and an expansion spring having connectionwith the clip and the frame, and means for releasably locking the leverin shifted posit-ions, said last named .means including a fixed rack anda pawl carried by the lever for co-action with the rack.

6. A roll-polishing-machine including a support, a frame mounted forswingable movement upon the support, a polishing,

means including a spring for swingably pulling the frame forfholding theroller in yielding engagement with the roll being operated upon, andmeans for selectively varying the tension of the spring for regulatingthe pressure of the polishing-roller upon said roll.

8. A roll-polishing-machine comprising a frame, a polishingrollercarried for swinging movement by the frame, and means including a leverpivoted for adjustable movement'upon the frame and a spring havingengagement with the lever and roller for holding the roller inadjustably selected yielding engagement with the roll being operatedupon.

9. A roll-polishing-machine comprising a frame, a polishing rollercarried for swinging movement by the frame, and means for holding theroller in adjustably selected yielding engagement with the roll beingoperated upon, said means including alever pivoted for adjustablemovement upon the frame, a spring having engagement with the 5 lever androller, a toothed sector fixed on the frame, and a co-acting pawlcarried by the lever. I 10. A roll-polishing-machine comprising frame, apolishing-roller carried swingably for adjustment by the frame, andmeans for 10 adjustably swinging the roller to accommodate mill-rolls ofvarying diameter.

In testimony whereof, I have signed my name to this specification.

ouis BAGI.

